Research Project on Economical Apartment Design, 1930: Building type IIb: section showing heating and electrical installation, 1:50

Photomechanical print in black ink on off-white card

Photomechanical print in black and red inks on white paper

Photomechanical print in black and red inks on white paper

Photomechanical print with green wash on paper

Photomechanical print in black ink on white paper

Photomechanical print with colored ink, wash, and applied type on paper

Photomechanical print with wash on paper

Photomechanical print in orange and black inks on paper